Multiple Choice
Which of the following is true because of the dead air space in the passageways?
A) The carbon dioxide level in the lungs is always higher than that in the atmosphere.
B) Air exchange is more complete.
C) The carbon dioxide level in the lungs is always lower than that in the atmosphere.
D) The lungs receive a complete exchange with fresh air every cycle.
E) all of the above
Correct Answer:
Verified
Correct Answer:
Verified
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